OnePlus 15 vs Vivo X300 Pro: For smartphone lovers, the end of 2025 and the beginning of 2026 are going to be a blast. Two big brands – OnePlus and Vivo – are coming with their new flagships, which are already in the news due to leaks and rumors. On one hand, there is OnePlus 15 which is made for performance and power, and on the other hand, Vivo X300 Pro which is ready to sacrifice everything in the name of photography. Meaning, both the phones are going to enter the market with their own philosophy, and confusion is bound to be created for the users.

Design & Display

The design and display of both the phones have their own charm. OnePlus 15 is expected to have a flat AMOLED panel with a refresh rate of 120Hz that can go up to 165Hz. It is also rumored to have a peak brightness of 2800 nits which is quite impressive. Vivo X300 Pro will come with a slightly more premium feel – curved AMOLED display, 120Hz refresh rate and a whopping 5000 nits brightness. That means the screen will look crystal clear even in direct sunlight.

Performance & Processor

OnePlus 15 is being called a “performance beast” as it is going to be powered by the new Snapdragon 8 Elite 2 chipset. This chipset will be quite advanced and efficient which is absolutely perfect for gaming and multitasking. Vivo X300 Pro is also powerful with MediaTek Dimensity 9500, but Snapdragon 8 Elite 2 can take the edge off it a bit. Meaning for performance lovers OnePlus seems to be a safe bet.

Cameras & Photography

This is where things get complicated. Vivo X300 Pro is going to be an absolute monster in the camera department. As per rumours it will have a 200MP periscope telephoto lens which hasn’t been seen in any phone till now. Also, with the collaboration of ZEISS the colours and clarity level will go up. OnePlus 15 will also come with a 50MP triple camera setup, but honestly speaking, it will hardly stand in front of Vivo’s 200MP zoom shots. For selfie lovers, Vivo is better with its 50MP front shooter.

Battery & Charging

For battery lovers, OnePlus 15 can be a dream phone because according to leaks, it will have a big battery of 7000mAh. Vivo X300 Pro has a battery of 6500mAh or maybe 7000mAh, but its charging speed is much faster – 120W wired charging, which is ahead of OnePlus’s 100W. Meaning OnePlus will give longer battery backup, but Vivo will charge quickly.

Final Verdict

If you want an all-rounder that is completely dependable along with performance, battery and smooth software, then OnePlus 15 will be the best pick for you. But if you are a photography lover and want to get professional-level camera quality from your phone, then Vivo X300 Pro will give you a different level of experience. Both the phones are flagship, you just have to decide whether you want the king of performance or the king of camera.